]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
hpfs: better test for errors
authorMikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Thu, 4 Jul 2013 16:42:29 +0000 (18:42 +0200)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 4 Jul 2013 18:22:46 +0000 (11:22 -0700)
commit3ebacb05044f82c5f0bb456a894eb9dc57d0ed90
treebb53d02c15568b0932c2f5ef5e758955b4fa69d0
parent8bb495e3f02401ee6f76d1b1d77f3ac9f079e376
hpfs: better test for errors

The test if bitmap access is out of bound could errorneously pass if the
device size is divisible by 16384 sectors and we are asking for one bitmap
after the end.

Check for invalid size in the superblock. Invalid size could cause integer
overflows in the rest of the code.

Signed-off-by: Mikulas Patocka <mpatocka@artax.karlin.mff.cuni.cz>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/hpfs/map.c
fs/hpfs/super.c